package com.ny.demo;

public class DSC {
    private int age;

    public void main(String[] args) {
        int age = 0;
        if (age<0) {
            System.out.println("你输入的年龄是不符合规范，不能为负数");
        }
        else {
            this.age=age;

        }
    }
}
